1. Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
2. Department of Periodontics and Preventive Dentistry, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
3. Department of Dental Materials and Prosthodontics, School of Dentistry at Araçatuba, São Paulo State University (UNESP), Araçatuba, Sao Paulo, Brazil
4. Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
5. Dental Science School (Faculdade de Ciências Odontológicas - FCO), Montes Claros, Minas Gerais, Brazil